Ricky comes clean

"Well..." he begins, weighing whether he should tell her the truth. On the one hand, he still didn't know how to operate the size ray, so he had no idea whether she would be able to use it. But on the other, as hot as this was, he didn't want his parents to come home to find that he had managed to shrink himself to the size of a bug! I guess I can trust her.

"You know how my dad is a scientist? Kind of a crazy one? It turns out that he's been working on a size ray, and I managed to accidentally zap myself," Ricky admits sheepishly, a bit embarrassed.

"Wait, just like that? You just... accidentally shrunk yourself?" Natalie asks, a confused look on her face. "I thought... nevermind."

"No, tell me!" Ricky insists, perking up immediately.

"I just... umm... I thought you'd done this on purpose. Because you liked it, or wanted to spy on me, or something..."

Sensing her slight disappointment, Ricky butts back in. "No! It was just an accident but... I honestly like seeing you like this. So big... I just feel so overwhelmed and powerless."

The smile returns to her face, her feelings lifted. "Me too," Natalie replies. "I've never thought of this before, but being so, SO much bigger than you is really fucking hot. I kinda want to mess around like this... at least for a bit."

An idea pops into Ricky's head. Possibly the worst one he's ever had, but he's not thinking with his brain right now. "Who's to say we can't? We should probably grow me back before my parents get back home, but Bobby is sleeping so we have the house to ourselves until then. We could even try making you a little bigger," he offers with a wink.

Natalie's face lights up. "Oooh... you mean, try the machine... on me? Only that we'd make me even bigger? Fuck yes, I'm in! Wanna do it now?"

Encouraged by her enthusiasm, Ricky grins back at her. "Sure! It's down in the basement. Can you carry me down there?"